Cooking oil is the main energy and nutrition source, and the cooking material for daily life. Fried food is also favored for its unique taste. With physical and chemical reactions during the high-temp cooking process, toxic chemicals will be produced. Currently, the traditional testing method on cooking oil is mainly chemical method that is commonly used and conducted by professionals in the lab. But the laboratory process always produces pollution and unnecessary waste. The Total Polar Material (TPM) value is the only acceptable standard used for cooking oil testing. OS280 is designed for cooking oil testing with safety and efficiency. It is able to test total polar material (TPM) values in minutes and suitable for all kinds of cooking oil within high operation temperatures.